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Title: Alkali-Metal-Intercalated Percolation Network Regulates Self-Assembled Electronic Aromatic Molecules

Journal Article · · Advanced Materials
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  1. Univ. at Buffalo, NY (United States). Dept. of Mechanical and Aerospace Engineering Research and Education in Energy Environment & Water (RENEW)
  2. Chinese Academy of Sciences (CAS), Shenzhen (China). Inst. of Advanced Technology
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Center for Nanoscale Materials
  4. Univ. at Buffalo, NY (United States). Dept. of Chemistry
+ Show Author Affiliations

Abstract In the continuously growing field of correlated electronic molecular crystals, there is significant interest in addressing alkali‐metal‐intercalated aromatic hydrocarbons, in which the possibility of high‐temperature superconductivity emerges. However, searching for superconducting aromatic molecular crystals remains elusive due to their small shielding fraction volume. To exploit this potential, a design principle for percolation networks of technologically important film geometry is indispensable. Here the effect of potassium‐intercalation is shown on the percolation network in self‐assembled aromatic molecular crystals. It is demonstrated that one‐dimensional (1D) dipole pairs, induced by dipole interaction, regulate the conductivity, as well as the electronic and optical transitions, in alkali‐metal‐intercalated molecular electronic crystals. A solid‐solution growth methodology of aromatic molecular films with a broad range of stability is developed to uncover electronic and optical transitions of technological importance. The light‐induced electron interactions enhance the charge‐carrier itinerancy, leading to a switchable metal‐to‐insulator transition. This discovery opens a route for the development of aromatic molecular electronic solids and long‐term modulation of electronic efficacy in nanotechnologically important thin films.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
US Army Research Office (ARO); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
Grant/Contract Number:
AC02-06CH11357; DE‐SC0018631; DE‐AC02‐06CH11357
OSTI ID:
1558928
Alternate ID(s):
OSTI ID: 1492089
Journal Information:
Advanced Materials, Vol. 31, Issue 11; ISSN 0935-9648
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

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Cited By (7)

Superconductivity of light‐metal hydrides journal March 2019
Strongly Correlated Aromatic Molecular Conductor journal February 2019
A highly conductive, transparent molecular charge-transfer salt with reversible lithiation journal January 2019
Metallization and superconductivity in methane doped by beryllium at low pressure journal January 2020
A conjugated polyaniline and water co-intercalation strategy boosting zinc-ion storage performances for rose-like vanadium oxide architectures journal January 2019
Magnetoelectric bistability of molecular ferroic solids journal January 2019
Metallization and superconductivity in potassium-doped methane journal August 2019

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36 MATERIALS SCIENCE
aromatic molecule
charge-transfer
molecular self-assembly
percolation network